Moves mash/wm into ash/mus

mash/wm/disconnected_app_handler.cc

Index: mash/wm/disconnected_app_handler.cc
diff --git a/mash/wm/disconnected_app_handler.cc b/mash/wm/disconnected_app_handler.cc
deleted file mode 100644
index 864342622c3c095ef9d4a5e1b2d04fcd8751242b..0000000000000000000000000000000000000000
--- a/mash/wm/disconnected_app_handler.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mash/wm/disconnected_app_handler.h"
-
-namespace mash {
-namespace wm {
-
-DisconnectedAppHandler::DisconnectedAppHandler() {}
-
-DisconnectedAppHandler::~DisconnectedAppHandler() {}
-
-void DisconnectedAppHandler::OnWindowEmbeddedAppDisconnected(
-    mus::Window* window) {
-  window->Destroy();
-}
-
-}  // namespace wm
-}  // namespace mash